Neurons in the <u>spinal cord</u>, control motor reflexes, which allows rhythmic and automatic movements to be carried out.
The spinal cord represents the lowest level in the hierarchical system that regulates reflex motor activity, voluntary movements, and body posture.
Therefore, their neurons have been organized into circuits that participate in simple automatic gait movements and simple defensive movements (withdrawal of the muscle in the event of any aggression) through reflex responses.
The motor neurons of these circuits are located in the anterior horns where they are arranged forming the so-called "poles" of motor neurons, equivalent to true motor neuron nuclei.
- Alpha motor neurons their axons are myelinated and they group together in the medulla and form columns that are known as motor nuclei.
- Gamma (γ) motor neurons innervate muscle fibers of the muscle spindle.
- Interneurons can be excitatory or inhibitory.
Therefore, we can conclude that neurons in the spinal cord, control motor reflexes, they present functional interactions between them and this allows rhythmic and automatic movements to be carried out with ease through reflex responses.
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Answer: maintenance the health of the natural world. Through allocation,exploitation and protection
Explanation:
This involves the health state of the living organisms of the word :the vegaation, the aquatic organisms and ithe biodervasity.
Answer:
C: Take infected amphibians and assign them to two populations. Leave one population alone; inoculate the other with Jl. Measure the rate at which infection proceeds in both populations.
Explanation:
In scientific investigations, the best way to determine the effect of certain experimental factor on the population of study is to have a baseline for comparison. This is usually referred to as controlled experiment.
<em>In the case of the observation that chytrid infection in amphibians seems to be inhibited by Janthinobacterium lividum, the best way experimental design is to get a population of amphibians suffering from the disease, divide them into two groups and subject them to the same conditions except the introduction of Janthinobacterium lividum to the skin of one of the groups.</em>
<em>A suitable method can thereafter be employed to measure the rate at which infection proceeds in both population. If indeed, the bacterium has the capacity to inhibit the infection, the rate of infection in the group with the bacterium will be significantly less than that of the group without the bacterium. </em>
The correct option is C.
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Answer:
1.fungi, 2.fungi 3.monera 4.fungi 5. protista 6. animalia
Explanation:
since, yeast is a fungus , penicilium and mushroom (agaricus) also fall under this catergory due to the <em>presence of mysceliom and hyphae.</em>
rizobium is a <em>bacteria</em> so falls under the kingdom monera
amoeba has <em>locamotory organs</em> hence is a part of the protista kingdom
while , fish is <em>an animal</em> and thus belong to animalia
